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Solana Rent-Exempt Minimum Balance Lookup
x402
Solana Rent-Exempt Minimum Balance Lookup is a paid API for AI agents from mintintel.35-171-220-195.sslip.io, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-31).
Returns the minimum lamports (and SOL) required for a Solana account of N data bytes to be rent-exempt, cached for 1 hour.
Price / call$0.001
Success—
StatusUnknown
How this service works
Minimum lamports / SOL for a Solana account with N data bytes to be rent-exempt (getMinimumBalanceForRentExemption, cached 1 h). 165 = token account, 82 = mint, 0 = plain wallet.
Output
Returns a JSON object containing the number of bytes queried, the minimum balance in lamports as an integer, and the equivalent SOL amount as a string. The value is sourced from Solana's getMinimumBalanceForRentExemption RPC call and cached for up to 1 hour.
Example use cases
Token account creation funding
“I'm about to create a new SPL token account on Solana — how many lamports do I need to send to make it rent-exempt? It's a standard token account so 165 bytes.”
Mint account initialization cost
“Before I initialize a new SPL mint on Solana, tell me the minimum SOL balance needed to keep it rent-exempt — it's an 82-byte mint account.”
Custom program account budgeting
“I'm deploying a custom Solana program account that stores 1024 bytes of data. What's the minimum lamport balance I need to fund it with so it never gets garbage collected?”
Technical details
Endpoint
GEThttps://mintintel.35-171-220-195.sslip.io/v1/sol/rent-exempt/:bytes?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a quick, cheap, cached lookup of Solana rent-exempt minimums for common account sizes (165 for token accounts, 82 for mints, 0 for wallets) or any arbitrary byte size up to 10 MB. Prefer this over calling a Solana RPC node directly when you want to avoid RPC infrastructure costs or rate limits, and when 1-hour cache freshness is acceptable (rent economics rarely change).
Side effects
- Invalid or non-integer bytes value returns an error response
- Bytes value exceeding 10485760 (10 MB) is out of range and rejected
- Stale cached data if Solana rent economics change within the 1-hour cache window
- Upstream RPC node unavailability causing 502/503 errors
- Payment failure via x402 protocol returns 402 Payment Required
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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